Vulnerability Description
Race condition in the ioctl_file_dedupe_range function in fs/ioctl.c in the Linux kernel through 4.7 allows local users to cause a denial of service (heap-based buffer overflow) or possibly gain privileges by changing a certain count value, aka a "double fetch" vulnerability.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 4.7 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=10eec6Patch
- http://www.openwall.com/lists/oss-security/2016/07/31/6Release Notes
- http://www.securityfocus.com/bid/92259
- https://bugzilla.redhat.com/show_bug.cgi?id=1362457Issue TrackingThird Party AdvisoryVDB Entry
- https://github.com/torvalds/linux/commit/10eec60ce79187686e052092e5383c99b4420a2Patch
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=10eec6Patch
- http://www.openwall.com/lists/oss-security/2016/07/31/6Release Notes
- http://www.securityfocus.com/bid/92259
- https://bugzilla.redhat.com/show_bug.cgi?id=1362457Issue TrackingThird Party AdvisoryVDB Entry
- https://github.com/torvalds/linux/commit/10eec60ce79187686e052092e5383c99b4420a2Patch
FAQ
What is CVE-2016-6516?
CVE-2016-6516 is a vulnerability with a CVSS score of 7.4 (HIGH). Race condition in the ioctl_file_dedupe_range function in fs/ioctl.c in the Linux kernel through 4.7 allows local users to cause a denial of service (heap-based buffer overflow) or possibly gain privi...
How severe is CVE-2016-6516?
CVE-2016-6516 has been rated HIGH with a CVSS base score of 7.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-6516?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.